Sr Mainframe Developer- Telon

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Project Overview:

We are currently seeking an accomplished Senior Platform Developer with specialized expertise in Mainframe development and advanced proficiency in TELON to support the modernization, enhancement, and sustained operation of mission-critical legacy systems. The ideal candidate will play a pivotal role in analyzing existing applications developed using TELON, contributing to the reengineering and transformation efforts, and supporting integration with evolving enterprise infrastructure.

This position requires deep technical knowledge, a methodical approach to legacy system evaluation and enhancement, and the ability to work closely with both business and technical teams in a highly regulated and performance-sensitive environment.

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Key Responsibilities:

o Design, code, test, and implement mainframe applications using TELON in conjunction with COBOL, CICS, JCL, and DB2.

o Perform detailed impact analysis for proposed application changes or system enhancements and contribute to solution design and technical specifications.

o Lead and participate in efforts to modernize TELON-based applications, including transitioning components to more contemporary platforms while preserving business functionality and ensuring backward compatibility.

o Develop and maintain efficient interfaces between TELON applications and other internal/external systems.

o Ensure seamless integration and data consistency across legacy and modernized components.

· Technical Leadership & Collaboration

o Provide technical guidance, mentoring, and support to junior developers and cross-functional project teams.

o Collaborate with business analysts, project managers, QA teams, and enterprise architects to deliver high-quality solutions aligned with strategic objectives.

· Performance Optimization & Support

o Analyze system performance and recommend optimizations to improve application throughput, reliability, and maintainability.

o Provide L3 support for production issues, perform root cause analysis, and implement corrective actions within SLA.

o Create and maintain comprehensive technical documentation, including design artifacts, program specifications, code walkthrough materials, and operational procedures.

o Ensure compliance with organizational development standards, security protocols, and audit requirements.

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Required Skills and Qualifications:

· Minimum of 8 years of progressive experience in mainframe application development and system support.

· Extensive hands-on experience with TELON, including development, debugging, code generation, and maintenance.

· Proficient in COBOL, JCL, CICS, DB2, VSAM, and associated utilities in a z/OS mainframe environment.

· Preferred experience in reverse engineering legacy code and documenting existing architecture.

· Solid understanding of mainframe batch and online processing architecture.

· Demonstrated experience in legacy application modernization, reengineering, and technical migrations.

· Familiarity with structured programming, code optimization, and system tuning principles.

· Strong analytical, problem-solving, and debugging skills with a commitment to quality and continuous improvement.

· Excellent interpersonal and communication skills, with the ability to articulate complex technical concepts to non-technical stakeholders.

· Experience working in Agile, Hybrid, or Waterfall SDLC environments.

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Preferred/Beneficial Skills (Not Mandatory):

· Prior experience in TELON-to-COBOL or TELON-to-Java/.NET migration efforts.

· Experience with mainframe Dev Ops tools such as Endevor, Changeman, Xpediter, File-AID, and Jenkins for z/OS.

· Exposure to enterprise scheduling tools (e.g., Control-M, CA-7).

· Knowledge of cloud integration with mainframe systems or hybrid infrastructure environments.

· Background in industries such as government, finance, insurance, or healthcare, where TELON applications are still prevalent.

• Seniority level
  
  Mid-Senior level

• Employment type
  
  Contract

• Job function
  
  Information Technology, Consulting, and Human Resources
• Industries Software Development, Government Administration, and IT Services and IT Consulting

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